Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ярославский политехнический институтfiledCriticalЯрославский политехнический институт
Priority to SU2061086ApriorityCriticalpatent/SU507732A1/ru
Application grantedgrantedCritical
Publication of SU507732A1publicationCriticalpatent/SU507732A1/ru